CN206242807U - A kind of non-maintaining hub band brake drum assembly - Google Patents

Abstract

The utility model discloses a kind of non-maintaining hub band brake drum assembly, it is characterized in, by wheel hub（1）, outer bearing（2）, inner bearing（3）, outer ring spacer（4）, cone spacer（5）, outer oil seal（6）, inner oil seal（7）, outer jump ring（8）, internal jump ring（9）, locking nut（10）, oil sealing seat ring（11）, back-up ring（12）And gear ring（13）Constitute non-maintaining hub body；Brake drum（14）By wheel bolt（15）And sunk screw（16）It is fixed together with hub body and constitutes non-maintaining hub band brake drum assembly；The non-maintaining hub band brake drum assembly not only realizes only chamber lubrication of inside and outside bearing, improve lubricating efficiency and lubricating quality, substantially prolongs lubrication time, also achieve hub assembly and be really combined into a cell cube, the problems such as oil sealing is scratched caused by wheel hub parts are often separated is eliminated, the integral disassembly, assembly of hub, overall maintenance is realized.

Description

A kind of non-maintaining hub band brake drum assembly

Technical field：

The utility model is related to automotive axle technical field, and specifically a kind of non-maintaining hub band brake drum is total Into.

Background technology：

Current automotive axle hub bearing lubrication has two kinds of grease lubrication and oil lubrication.Firstly, for oil lubrication structural hub Unit, the greatest problem for existing is still that cannot effectively prevent wheel hub oil leak；Secondly, it is existing for grease lubrication structural hub unit Maximum problem is cannot for a long time to keep grease in the active position of bearing, and bearing lubrication effect is ensured for a long time, this be because The lubricating grease that bearing surface has during for initial assembling, after conical bearing rotates at a high speed for a long time, grease can be rolled from cone bearing Sub- small end is got rid of to the big end of bearing roller, i.e. grease is got rid of to two ends in wheel hub from centre, in this regard, current solution be exactly Hub inner lumen the more fill enough greases ensure it is internal there are enough greases to supplement all the time, this greatly result in into This increase, also creates substantial amounts of waste.Therefore, normal axle hub must be maintained using 1 year/100,000 kilometers, again more Change, fill new lubricating grease.

Additionally, existing hub assembly is when dismounting is maintained, hub bearing, oil sealing seat ring etc. certainly will all depart from wheel hub, occur The phenomenon of part demolition, installation one by one, especially oil sealing inner lip during with the demolition, installation of oil sealing seat ring, because of the friction of tension There are problems that lip easily occurs scratches damage, it has to repeatedly change.

Utility model content：

The purpose of this utility model is to overcome the shortcomings of above-mentioned prior art, and provides a kind of non-maintaining hub band system Dynamic drum assembly；Existing axle hub bearing oil lubrication hub oil leak is mainly solved, the space that grease lubrication is present is wealthy, fat gets rid of winged, fat Waste, so as to the problem for causing vehicle bridge service cycle small, oil sealing is scratched caused by wheel hub single-piece disassembly process is also solved in addition Damage problem.

The technical solution of the utility model is：A kind of non-maintaining hub band brake drum assembly, it is characterized in that, By wheel hub, outer bearing, inner bearing, outer ring spacer, cone spacer, outer oil seal, inner oil seal, outer jump ring, internal jump ring, locking nut, oil sealing Seat ring, back-up ring, gear ring, brake drum, wheel bolt and sunk screw composition；Described wheel hub is provided with inside and outside bearing hole；It is described Inner bearing and outer bearing inside and outside bearing aperture of the external diameter respectively with wheel hub it is identical, wheel hub is fixed on by bearing outer ring At inside and outside bearing hole, bearing inner race is rotated freely on outer ring；The outer bearing aperture phase of the external diameter of described back-up ring and wheel hub Together, its inner face is close to the bearing outer ring end face of outer bearing and is fixedly mounted at bearing hole；The inside and outside bearing of described wheel hub The inboard in hole is respectively equipped with inside and outside spacer ring hole, and the internal diameter of the external diameter of cone spacer and outer ring spacer respectively with inside and outside spacer ring hole is identical, It is fixedly mounted inside and outside spacer ring hole；The inside and outside bearing hole outside of described wheel hub is respectively equipped with inside and outside oil sealing hole, described Inside and outside oil sealing hole internal diameter of the external diameter of inner oil seal and outer oil seal respectively with wheel hub is identical, is fixedly mounted inside and outside oil sealing hole, The inner face of outer oil seal is close to the outer face of back-up ring；Be respectively equipped with inside and outside jump ring groove on described wheel hub, internal jump ring with it is outer Jump ring is fixed on wheel hub by jump ring groove respectively；Described oil sealing seat ring is provided with oil sealing and coordinates the face of cylinder and flange disk, The external diameter of its flange disk less than internal jump ring internal diameter, during installation the inside and outside end face of the flange disk respectively with inner oil seal and interior The nearest end face of jump ring leaves 2-3mm gaps, and the external diameter on its oil sealing cooperation face of cylinder is identical with inner oil seal internal diameter, and inner oil seal is in oil Rotated on envelope seat ring；Described locking nut is provided with oil sealing and coordinates the face of cylinder and flange disk, the external diameter of its flange disk to be less than The internal diameter of outer jump ring, nearest end face of the inside and outside end face of the flange disk respectively with outer oil seal and outer jump ring leaves 2- during installation 3mm gaps, the external diameter on its oil sealing cooperation face of cylinder is identical with the internal diameter of outer oil seal, and outer oil seal rotates on locking nut；It is described Gear ring be fixed on one end of wheel hub；It is above-mentioned wheel hub, outer bearing, inner bearing, outer ring spacer, cone spacer, outer oil seal, inner oil seal, outer Jump ring, internal jump ring, locking nut, oil sealing seat ring, back-up ring and gear ring composition hub body；Described brake drum passes through wheel spiral shell Bolt and sunk screw are fixed together with hub body.

Compared with the prior art a kind of non-maintaining hub band brake drum assembly described in the utility model has as follows Good effect：

1st, spacer ring is increased respectively between inside and outside two cone bearings and wheel hub internal cavity, and also increase at outer bearing Oil sealing, two such cone bearing just each has oneself independent appropriate space, and what is filled in this space is appropriate Lubricating grease, it is ensured that two cone bearings can for a long time keep excellent lubricant effect so that vehicle bridge service cycle can be into Increase again, service cycle can bring up to ten thousand kilometers of 40-80 from original 100,000 kilometers；

2nd, hub is really combined into a cell cube by increasing by two designs of jump ring, in multiple demolition, installation During, it is removed and loads onto as an integral unit all the time, and internal structure and mutual alignment remain original and dispatch from the factory shape State, eliminates hub oil seal and scratches the problem damaged, and also saving the demolition, installation time in addition facilitates user.

Brief description of the drawings：

Fig. 1 is structural representation of the present utility model.

Specific embodiment：

In order to more fully understand and implement, specific embodiment is given below in conjunction with the accompanying drawings and describes the utility model in detail；Institute It is only used for explaining the utility model for embodiment, is not intended to limit scope of the present utility model.

Embodiment 1, referring to Fig. 1, needs to be processed into wheel hub 1, outer bearing 2, inner bearing 3, outer ring spacer 4, interior according to design Spacer ring 5, outer oil seal 6, inner oil seal 7, outer jump ring 8, internal jump ring 9, locking nut 10, oil sealing seat ring 11, back-up ring 12, gear ring 13, system Dynamic drum 14, wheel bolt 15 and sunk screw 16；As normal wheel hub, wheel hub 1 is machined with inside and outside bearing hole, by inner bearing 3 It is processed into respectively with the external diameter of outer bearing 2 identical with the inside and outside bearing aperture of wheel hub 1, then leads to inner bearing 3 and outer bearing 2 Cross bearing outer ring to be fixed at the inside and outside bearing hole of wheel hub 1, such bearing inner race is rotated freely on outer ring；By back-up ring 12 External diameter is processed into identical with the outer shaft bearing bore internal diameter of wheel hub 1, and the bearing outer ring end face that its inner face is close to outer bearing 2 is fixed At bearing hole；Again by the inside and outside bearing hole of wheel hub 1 inboard be machined with inside and outside spacer ring hole respectively, by cone spacer 5 with The internal diameter that the external diameter of outer ring spacer 4 is processed into respectively with inside and outside spacer ring hole is identical, and they are respectively and fixedly installed into inside and outside spacer ring At hole；The inside and outside bearing hole outside of wheel hub 1 is machined with inside and outside oil sealing hole respectively, by the external diameter of inner oil seal 7 and outer oil seal 6 point The inside and outside oil sealing hole internal diameter for not being processed into wheel hub 1 is identical, and they are fixedly mounted inside and outside oil sealing hole, outer oil seal 6 Inner face is close to the outer face of back-up ring 12；Wheel hub 1 is processed with inside and outside jump ring groove respectively again, using as standard component Internal jump ring 9 is assembled by jump ring groove and is fixed on wheel hub 1 respectively with outer jump ring 8；Oil sealing seat ring 11 is machined with into oil sealing to coordinate The face of cylinder and flange disk, the internal diameter less than internal jump ring 9 is processed into by the external diameter of flange disk, by flange disk during installation Inside and outside end face leaves 2-3mm gaps with the nearest end face of inner oil seal 7 and internal jump ring 9 respectively, and oil sealing is coordinated into the outer of the face of cylinder Footpath is processed into identical with the internal diameter of inner oil seal 7, and such inner oil seal 7 can be rotated freely on oil sealing seat ring 11；By locking nut 10 are machined with oil sealing coordinates the face of cylinder and flange disk, and the external diameter of flange disk is processed into the internal diameter less than outer jump ring 8, installs When the inside and outside end face of flange disk is left into 2-3mm gaps with the nearest end face of outer oil seal 6 and outer jump ring 8 respectively, and by oil sealing The external diameter on the face of cylinder is coordinated to be processed into identical with the internal diameter of outer oil seal 6, such outer oil seal 6 can freely revolve on locking nut 10 Turn；Identical with normal wheel hub, gear ring 13 assembles the one end for being fixed on wheel hub 1；By above-mentioned wheel hub 1, outer bearing 2, inner bearing 3, Outer ring spacer 4, cone spacer 5, outer oil seal 6, inner oil seal 7, outer jump ring 8, internal jump ring 9, locking nut 10, oil sealing seat ring 11, back-up ring 12 Hub body is just constituted after being assembled with gear ring 13；It is identical with normal wheel hub brake drum structure, brake drum 14 is passed through into wheel Bolt 15 and sunk screw 16 are fixed together with the assembling of hub body.

A kind of non-maintaining hub band brake drum assembly described in the utility model, during work, by inner bearing 3 and outer shaft Hold and scribbled on 2 appropriate HP-R types brand-name grease, afterwards by this it is total it is integral be assemblied at three external diameter respectively with outer bearing 2, interior On bearing 3, the internal diameter identical axle tag 17 of oil sealing seat ring 11, by outer bearing 2 and inner bearing 3, hub body can be Rotated freely on axle tag 17；Determine that inner bearing 3 and the bearing of outer bearing 2 are swum by the torque value of adjusting lock nut 10 Gap, two bearings are adjusted to optimal confined state, then lock adjusting nut 10；After vehicle comes into operation, because of outer ring spacer 4th, the presence of cone spacer 5, outer oil seal 6 and inner oil seal 7, inner bearing 3 and outer bearing 2 are just each in a space for size appropriateness Interior operating, has appropriate HP-R type brand-name greases in space, this ensure that two bearings can keep permanent high-quality Lubricating efficiency, has accomplished that vehicle bridge can again be maintained after ten thousand kilometers of 40-80 is travelled, and realizes " non-maintaining ".Torn open in maintenance When unloading, because of the presence of outer jump ring 8 and internal jump ring 9 on wheel hub 1, and the internal diameter of outer jump ring 8 and internal jump ring 9 is respectively smaller than locking screw The external diameter of the flange disk of mother 10 and oil sealing seat ring 11, therefore only need direct twist lock nut 10, it is possible to pull down whole wheel Hub brake drum assembly, the brake drum that such as need to more renew, directly pulling down wheel bolt 15 and sunk screw 16 can just realize；As needed Supplemental lubrication fat changes bearing, first pulls down outer jump ring 8 and internal jump ring 9, then just can be with by pushing outer ring spacer 4 and cone spacer 5 Disassembling for all parts is completed, replacing purpose is reached, then assembling is completed by the step opposite with dismounting again, road is gone up again to be carried out For a long time, the work traveling of big mileage.

Claims (1)

1. a kind of non-maintaining hub band brake rouses assembly, it is characterised in that by wheel hub（1）, outer bearing（2）, inner bearing （3）, outer ring spacer（4）, cone spacer（5）, outer oil seal（6）, inner oil seal（7）, outer jump ring（8）, internal jump ring（9）, locking nut（10）、 Oil sealing seat ring（11）, back-up ring（12）, gear ring（13）, brake drum（14）, wheel bolt（15）And sunk screw（16）Composition；It is described Wheel hub（1）It is provided with inside and outside bearing hole；Described inner bearing（3）And outer bearing（2）External diameter respectively with wheel hub（1）It is interior, Outer bearing aperture is identical, and wheel hub is fixed on by bearing outer ring（1）Inside and outside bearing hole at, bearing inner race on outer ring freely Rotation；Described back-up ring（12）External diameter and wheel hub（1）Outer bearing aperture it is identical, its inner face is close to outer bearing（2）'s Bearing outer ring end face is fixedly mounted at bearing hole；Described wheel hub（1）Inside and outside bearing hole inboard be respectively equipped with it is inside and outside Spacer ring hole, cone spacer（5）With outer ring spacer（4）Internal diameter of the external diameter respectively with inside and outside spacer ring hole it is identical, be fixedly mounted on inside and outside At spacer ring hole；Described wheel hub（1）Inside and outside bearing hole outside be respectively equipped with inside and outside oil sealing hole, described inner oil seal（7）With Outer oil seal（6）External diameter respectively with wheel hub（1）Inside and outside oil sealing hole internal diameter it is identical, be fixedly mounted inside and outside oil sealing hole, outward Oil sealing（6）Inner face is close to back-up ring（12）Outer face；Described wheel hub（1）On be respectively equipped with inside and outside jump ring groove, interior card Spring（9）With outer jump ring（8）Wheel hub is fixed on by jump ring groove respectively（1）On；Described oil sealing seat ring（11）Oil sealing is provided with to match somebody with somebody The face of cylinder and flange disk are closed, the external diameter of its flange disk is less than internal jump ring（9）Internal diameter, during installation the flange disk it is interior, Outer face respectively with inner oil seal（7）And internal jump ring（9）Nearest end face leave 2-3mm gaps, its oil sealing coordinates the outer of the face of cylinder Footpath and inner oil seal（7）Internal diameter is identical, inner oil seal（7）In oil sealing seat ring（11）Upper rotation；Described locking nut（10）It is provided with oil Envelope coordinates the external diameter of the face of cylinder and flange disk, its flange disk to be less than outer jump ring（8）Internal diameter, flange disk during installation Inside and outside end face respectively with outer oil seal（6）With outer jump ring（8）Nearest end face leave 2-3mm gaps, its oil sealing coordinates the face of cylinder External diameter and outer oil seal（6）Internal diameter it is identical, outer oil seal（6）In locking nut（10）Upper rotation；Described gear ring（13）It is fixed on Wheel hub（1）One end；Above-mentioned wheel hub（1）, outer bearing（2）, inner bearing（3）, outer ring spacer（4）, cone spacer（5）, outer oil seal（6）、 Inner oil seal（7）, outer jump ring（8）, internal jump ring（9）, locking nut（10）, oil sealing seat ring（11）, back-up ring（12）And gear ring（13）Group Into hub body；Described brake drum（14）By wheel bolt（15）And sunk screw（16）It is fixed on hub body Together.